Little Mix, the first group to have won the U.K. version of "The X Factor," is experiencing some backlash for their performance in the show's finale. The all-girl group performed their latest tracks entitled "Oops" and "Touch!" and had the watchers furious because of their shocking costume revelation.

Perrie Edwards, Jesy Nelson, Leigh-Anne Pinnock and Jade Thirlwall initially wore discreet dresses as they were picked to give the last performance for "The X Factor". However, as the audience were enjoying their show, the four ladies tore off their clothes and stripped into pastel leotards with two pieces under paired with fishnet tights and knee-high boots.

While some of the audience admired their figure and sexy visage, furious "The X Factor" fans emerged and threw hate comments towards the group.

"Seriously #littlemix need to put clothes on I want positive role models for my girl not ones that use trawls to put on make up and wear nada," a certain Sam tweeted.

"#XFactor shocking outfits from #LittleMix .. target audience is 12 year olds ! Style overhaul required ! Who goes out dressed like that !?" another user tweeted.

These and more harsh comments flooded the Little Mix hashtags. Luckily for the group, some supporters backed them up.

"So people are complaining about Little Mix outfits, they performed at 9:40, I'm sure children should be in bed? #xfactor#littlemix," author Sara Dalton tweeted.

"WOMEN SHAMELESSLY OWN LEGS, DISGRACEFUL BEHAVIOUR - people reacting to Little Mix's X Factor outfits #xfactorfinal#littlemix #slay," Grainne O'Hare  tweeted.

Though the finale performance made by the girl group Little Mix sparked up a little controversy, fans were still happy to have Matt Terry announced as "The X Factor's" Champion. The 23-year-old decided to sing "One Day I'll Fly Away" by Randy Crawford. As for his favorite song among the series, he chose "Writings on the Wall" by Sam Smith.